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Lot 45
A rare late 18th century fourth series pocket chronometer movement of the 'second kind' with interesting Maritime History John Arnold, London, No 25/326. Circa 1783.
23 November 2004, 14:00 GMT
London, New Bond Street£1,600 - £2,200
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Find your local specialistA rare late 18th century fourth series pocket chronometer movement of the 'second kind' with interesting Maritime History
John Arnold, London, No 25/326. Circa 1783.
full plate gilt movement signed Jno Arnold, Invt. et Fecit, No 25/326, with pierced and engraved straight edged wedge shaped cock to a ruby endstone and blued steel helical spring of four turns supporting a steel and brass O Z balance, the chain fusee movement with maintaining power and Arnold type detent escapement, now fitted with a later enamel Roman dial and contained in an associated white metal case top plate 40mm. diameter
full plate gilt movement signed Jno Arnold, Invt. et Fecit, No 25/326, with pierced and engraved straight edged wedge shaped cock to a ruby endstone and blued steel helical spring of four turns supporting a steel and brass O Z balance, the chain fusee movement with maintaining power and Arnold type detent escapement, now fitted with a later enamel Roman dial and contained in an associated white metal case top plate 40mm. diameter
Footnotes
Illustrated as Plate 106 in Mercer and described by him as "In original state. steel helical spring"
This pocket chronometer movement was almost certainly on board the ship 'Isabella' which sailed under Captain Ross on his expedition to find the North West passage in 1818-1819. See Hans Staegar "One Hundred Years of Precision Timekeepers"